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Date: Tue, 21 Jul 2015 11:15:00 -0000
From: James Greenhalgh <james.greenhalgh@arm.com>
To: Kyrill Tkachov <kyrylo.tkachov@arm.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>,        Marcus Shawcroft <Marcus.Shawcroft@arm.com>,        Richard Earnshaw <Richard.Earnshaw@arm.com>
Subject: Re: [PATCH][AArch64][7/14] Implement TARGET_SET_CURRENT_FUNCTION
Message-ID: <20150721111401.GA11073@arm.com>
References: <55A7CBD8.8000705@arm.com>
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On Thu, Jul 16, 2015 at 04:20:56PM +0100, Kyrill Tkachov wrote:
> Hi all,
> 
> This patch implements TARGET_SET_CURRENT_FUNCTION and defines SWITCHABLE_TARGET.
> With this patch in the series, we should be far enough to get LTO option switching to work properly.
> 
> The implementation if TARGET_SET_CURRENT_FUNCTION is pretty much a direct copy from the rs6000 backend,
> and i386 has a very similar structure as well.  I tried to simplify this for aarch64, but in the end
> this implementation was the one that worked.
> 
> TARGET_SET_CURRENT_FUNCTION should take the target-specific options from DECL_FUNCTION_SPECIFIC_TARGET
> and use them to set up the backend state.  Since it may be called many times for the same function,
> we keep track of the previous function this got called on in order to avoid repeating work.
> 
> Bootstrapped and tested on aarch64.
> 
> Ok for trunk?

OK.

Thanks,
James

> 
> Thanks,
> Kyrill
> 
> 2015-07-16  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
> 
>      * config/aarch64/aarch64.h (SWITCHABLE_TARGET): Define.
>      * config/aarch64/aarch64.c: Include target-globals.h
>      (aarch64_previous_fndecl): New variable.
>      (aarch64_set_current_function): New function.
>      (TARGET_SET_CURRENT_FUNCTION): Define.